Folsomia candida as suitable ecotoxicological models for untarget pesticide effect in the food production

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F24%3A10177075" target="_blank" >RIV/00027006:_____/24:10177075 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Folsomia candida as suitable ecotoxicological models for untarget pesticide effect in the food production

Original language description

Risk assessments of pesticides on relevant non-target organisms are needed to eliminate negative impacts on the environment and the food. The pesticides are commonly used in tank-mixes, which pose a higher risk for non-target organisms. We evaluated the effect of three selected plant protection products (PPPs) known to be commonly used in tank-mixes in rapeseed (Brassica napus) on the non-target Folsomia candida. Springtail F.candida shares many metabolic pathways with humans. A pesticide-free model soil was treated with field-realistic doses/applications of the insecticide Biscaya 240 OD, the fungicide Tilmor, the growth regulator Atonik and their tank-mix. Ten springtails were placed in the pesticide-treated or control soil and their survival was assessed after 28 days. The experiment was repeated three times to assess the effect of exposure in time. The results showed that all the four exposures significantly (α = 0.05) affected the survival of springtails. Most significantly, the tank mix decreased the survival of springtails higher than when the PPPs were applied individually, and there was not significant difference between Biscaya and the tank-mix, and the other two PPPs. In addition, Bayesian statistics showed that the treatment by PPPs had a higher effect than the time of exposure. Further tests showed that the negative effect of tank-mix on the survival of springtails was suppressed by application of biotin (vitamin B7), while riboflavin (vitamin B2) was low effective. This study shows that the insecticide, the fungicide and also the plant growth regulator are dangerous for F. candida. In addition, this study provides a novel bioassay for the risk assessment of chemicals on springtails in soil environment under laboratory conditions. We stress the importance to assess the effects of relevant tank-mixes. Vitamins have the potential to decrease the toxicity of agrochemicals, probably due to interaction with F. candida symbiotic bacterium Wolbachia.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

<a href="/en/project/TH03030178" target="_blank" >TH03030178: New methods for assessing plant protection products risks against non-target soil organisms: Assessing risks of xenobiotics contamination on diversity</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů